Yes I've fitted the prototype manifold. It is awful, lots of dressing up work required and i'm certainly not impressed with the level of workmanship, the final product I will be selling will be a steam pipe manifold with every thing done to specifications. it will definitely flow much better then a stock Rb25det manifold.
How long before these are ready and how much? i've just snapped a manifold bolt and it's stinking the car out now.
Just wondering if i should re-bolt it or upgrade